如何使用jtextfield在jtable中搜索数据？

如何使用jtextfield在jtable中搜索数据？

为了在表上搜索内容，必须将原始内容存储在某个变量中。在下面的示例中，我将表模型的初始值存储在向量中。
下面有两种实现方式：一种是在文本字段上键入内容后立即进行搜索，另一种则仅在单击按钮后进行搜索。

对于第一个，您必须使用documentListener为您做事。

下面的函数将删除表值（如果找不到匹配项，则表为空），并在所有单元格中搜索字符串，如果找到匹配项，则会将该行添加到表中。

public void searchTableContents(String searchString) {      DefaultTableModel currtableModel = (DefaultTableModel) table.getModel();    //To empty the table before search    currtableModel.setRowCount(0);    //To search for contents from original table content    for (Object rows : originalTableModel) {        Vector rowVector = (Vector) rows;        for (Object column : rowVector) { if (column.toString().contains(searchString)) {     //content found so adding to table     currtableModel.addRow(rowVector);     break; }        }    }}

这是上面的完整代码

import java.util.Vector;import javax.swing.event.documentEvent;import javax.swing.event.documentListener;import javax.swing.table.DefaultTableModel;public class TableSearch extends javax.swing.Jframe {Vector originalTableModel;documentListener documentListener;public TableSearch() {    initComponents();    setLocationRelativeTo(null);    //backup of original values to check    originalTableModel = (Vector) ((DefaultTableModel) table.getModel()).getDataVector().clone();    //add document listener to jtextfield to search contents as soon as something typed on it    adddocumentListener();}private void adddocumentListener() {    documentListener = new documentListener() {        public void changedUpdate(documentEvent documentEvent) { search();        }        public void insertUpdate(documentEvent documentEvent) { search();        }        public void removeUpdate(documentEvent documentEvent) { search();        }        private void search() { searchTableContents(jTextField1.getText());        }    };    searchOnType.setSelected(true);}@SuppressWarnings("unchecked")// <editor-fold defaultstate="collapsed" desc="Generated Code">    private void initComponents() {    jScrollPane1 = new javax.swing.JScrollPane();    table = new javax.swing.JTable();    jPanel1 = new javax.swing.JPanel();    searchonType = new javax.swing.JCheckBox();    jTextField1 = new javax.swing.JTextField();    searchButton = new javax.swing.JButton();    setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);    table.setModel(new javax.swing.table.DefaultTableModel(        new Object [][] { {"masd", "asdad", "asdasda", "ert"}, {"gdfg", "name", "test", "dfg"}, {"rrrh", "dfg", "sdfsf", "sdf"}, {"ter", "retg", "wersd", "wer"}        },        new String [] { "Title 1", "Title 2", "Title 3", "Title 4"        }    ));    jScrollPane1.setViewportView(table);    getContentPane().add(jScrollPane1, java.awt.BorderLayout.CENTER);    searchOnType.setText("Search on Type");    searchOnType.addItemListener(new java.awt.event.ItemListener() {        public void itemStateChanged(java.awt.event.ItemEvent evt) { searchonTypeItemStateChanged(evt);        }    });    searchButton.setText("Search");    searchButton.addActionListener(new java.awt.event.ActionListener() {        public void actionPerformed(java.awt.event.ActionEvent evt) { searchButtonActionPerformed(evt);        }    });    javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);    jPanel1.setLayout(jPanel1Layout);    jPanel1Layout.setHorizontalGroup(        jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)        .addGroup(jPanel1Layout.createSequentialGroup() .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 192, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(searchButton) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(searchOnType) .addContainerGap())    );    jPanel1Layout.setVerticalGroup(        jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)        .addGroup(jPanel1Layout.createSequentialGroup() .addContainerGap() .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.baseLINE)     .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)     .addComponent(searchButton)     .addComponent(searchOnType)) .addContainerGap())    );    getContentPane().add(jPanel1, java.awt.BorderLayout.NORTH);    pack();}// </editor-fold>private void searchButtonActionPerformed(java.awt.event.ActionEvent evt) {     searchTableContents(jTextField1.getText());}private void searchonTypeItemStateChanged(java.awt.event.ItemEvent evt) {      if (searchOnType.isSelected()) {        jTextField1.getdocument().adddocumentListener(documentListener);    } else {        jTextField1.getdocument().adddocumentListener(null);    }}public void searchTableContents(String searchString) {    DefaultTableModel currtableModel = (DefaultTableModel) table.getModel();    //To empty the table before search    currtableModel.setRowCount(0);    //To search for contents from original table content    for (Object rows : originalTableModel) {        Vector rowVector = (Vector) rows;        for (Object column : rowVector) { if (column.toString().contains(searchString)) {     //content found so adding to table     currtableModel.addRow(rowVector);     break; }        }    }}public static void main(String args[]) {        java.awt.EventQueue.invokeLater(new Runnable() {        public void run() { new TableSearch().setVisible(true);        }    });}// Variables declaration - do not modify          private javax.swing.JPanel jPanel1;private javax.swing.JScrollPane jScrollPane1;private javax.swing.JTextField jTextField1;private javax.swing.JButton searchButton;private javax.swing.JCheckBox searchOnType;private javax.swing.JTable table;// End of variables declaration        }